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Palindromes and DNA Symmetry- Concept Attainment Activity

Palindromes and DNA Symmetry-Concept Attainment Activity, FB1757
Catalog Number
Palindromes and DNA Symmetry- Concept Attainment Activity
Product Description

By: The Flinn Staff

Why will a restriction enzyme cut DNA at a 5'-TCGA-3' site, but not at a 5'-ACGA-3' site? In the first example, the base sequence on the complementary strand is 3'-AGCT-5'. The base sequence at a restriction enzyme site always “reads” the same-in the 5' to 3' direction-on the parent and complementary strand. When this type of symmetry occurs in words, phrases, or numbers, it is called a palindrome. Use this concept attainment activity to help students recognize and identify palindromes, first in words and phrases, then in DNA sequences. Kit includes “Yes” and “No” header cards and 20 sample cards containing both palindromes and non-palindromes. The first card is always a “Yes” example, the second is always a “No” example. As the teacher silently displays additional cards, the students must decide whether the example is a palindrome. This “minds-on” activity forces students to look for connections between examples and to develop their own working definition of palindromes.

Cards are printed on colorful 8 1/2" x 5 1/2" card stock and laminated for durability. Velcro® Dot Tape or Magnetic Tape, available separately, can be used to display these cards during the activity.

Velcro Dot Tape
Two-foot long strip contains 24 hook-and-loop pairs. Dots are  3/4" in diameter.
Flexible Magnetic Tape
Flexible magnetic strips have a tape adhesive on one side and a magnet on the other. The magnetic side will stick to a magnetic chalkboard. Hundreds of laboratory and classroom uses! Easily cut with scissors. Each roll of tape is 1/2" wide x 10...
Additional Resources
No Additional Resources at the time.
Flinn Catalog/Reference Manual Page 796
P.O. Box 219, Batavia, IL60510



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